My mom insisted I bring pots and pans to college, even though I had no clue how to cook. That led to a friend asking if I would try to make a recipe her french grandmother gave her for her favorite dish.
I carefully read and re-read every line of the recipe and followed it to a T. My friend tried it and her face fell; it tasted like nothing. Later she called her grandmother and asked what I had messed up. "In France, no one needs to be told to add butter or salt."
Newer players want recipes. Bid X with Y. When you have 6 points do this, when you have 7 do that. Unfortunately, recipes that call for points + shape are missing a key ingredient: Suit quality.
What do you need to make a 1-level overcall for instance? Don't say 7-17 points and a 5-card suit. That's at best an incomplete answer. When you have a good suit, you don't need 7 points. When you have a bad suit, you need more like 10 or 11.
Take a look at this hand: